(19)
(11) EP 0 374 522 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.11.1991 Bulletin 1991/47

(43) Date of publication A2:
27.06.1990 Bulletin 1990/26

(21) Application number: 89121714.3

(22) Date of filing: 24.11.1989
(51) International Patent Classification (IPC)5: C08L 61/30, C08L 31/04, C08K 3/00, B27N 3/00, C08L 97/02
// (C08L61/30, 31:04, 97:02),(C08L31/04, 61:30, 97:02),(C08L97/02, 31:04, 61:30)
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR LI NL SE

(30) Priority: 25.11.1988 IT 2273088

(71) Applicant: MINISTERO DELL' UNIVERSITA' E DELLA RICERCA SCIENTIFICA E TECNOLOGICA
I-00196 Roma (IT)

(72) Inventors:
  • Zavatterri, Ignazio
    I-21010 Cardano al Campo Varese (IT)
  • Cova, Mario
    I-21053 Castellanza Varese (IT)

(74) Representative: Weinhold, Peter, Dr. et al
Patentanwälte Dr. Weinhold, Dannenberg, Dr. Gudel, Schubert Siegfriedstrasse 8
80803 München
80803 München (DE)


(56) References cited: : 
   
       


    (54) Binding compositions for fire-retarded ligno-cellulosic composites and process for preparing them


    (57) Binding compositions for fire-retarded lignocellulosic com­posites, comprising an aqueous dispersion containing at least one amine binding agent and at least one water-dis­persed acetovinyl resin having a glass transition temperature (Tg) lower than 5°C, optionally associated with at least one fire-retardant agent.
    These compositions allow to obtain resin-bonded lignocellu­losic materials which, with the other characteristics being unchanged, show good green tack.





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